baber/WOPTO huggingface dataset:
Patent GB-350452-A (GB)
Title: Improvements in and relating to mechanical stokers
IPC: F23J1/00
Filed: 1930-03-10
Abstract: 350,452. Ashpits. ERITH'S ENGINEERING CO., Ltd. and WOODFIELD, F. W., 33, Farringdon Street, London. March 10, 1930, No. 7752. [Class 51(i).] Apparatus for crushing and discharging clinker associated with furnace ashpits and of the kind comprising crushing rollers co-operating with spring-pressed pivoted crushing plates is provided with means whereby the pivoted plates may be moved outwardly to discharge the ashpit without compressing the springs. As shown in the Figure, the pivoted crushing plates 4, 5 which co-operate with the crushing rollers 1, 2 at the base of the ashpit 3 are connected at 8, 9 to links 10, 11 carrying springs 24, 25 and such links engage by pin and slot connections with levers 16, 17 mounted on shafts 18, 19. Under normal working the thrust of the plates 4, 5 is transmitted through the springs and levers 16, 17 to the abutments 22, 23 on I- beams 26, 27. When it is desired to clear the ashpit, the shafts 18, 19 are rotated so as to move the levers 16, 17 downwardly when the plates may be opened without compressing the springs. The plates at each end of the ashpit may be operated individually or collectively.
Patent GB-119010-A (GB)
Title: Improvements in Cutterblocks for use in Machines for Planing and Moulding Wood.
IPC: B27G13/02
Filed: 1918-05-09
Abstract: 119,010. Robinson & Son, T., and Robinson, C. J. May 9, 1918. Cutter heads.-In cutter blocks for wood planing and moulding machines of the type wherein the cutters D are clamped upon a block A by segments B which together comprise a cylinder, the cutters are adjusted by two or more screws E mounted in the block A under the cutting-face of each cutter. Nuts H which work on the screws have projections K engaging in the cutters.
Patent GB-800159-A (GB)
Title: Polyoxyalkylene surface active compounds
IPC: C11D1/722
Filed: 1956-03-13
Abstract: Mixed surface-active polyoxyalkylene compounds are prepared by reacting ethylene oxide with a product having a molecular weight of at least about 1000 and a detergency factor greater than 100 which has been prepared by forming random polyoxypropylene - polyoxyethylene chains at the sites of reactive hydrogen atoms in a compound containing 2-6 such hydrogen atoms, not more than about 8 carbon atoms and having a detergency factor less than 100 per cent. The polyoxyethylene chains constitute 5-90 per cent by weight of the final product.  The term "detergency factor" is defined in the Specification.  Suitable reactive hydrogen-containing starting materials are ethylene glycol, propylene glycol, butylene glycol, adipic acid, amylamine, ethylamine, glycerine, oxalic acid, glycollic acid, pentaerythritol, trimethylolpropane, pentane-diol-1,5, hexane-diol-1,6, octane-diol-1,8, resorcinol, aniline, or 4-butylbenzene sulphonamide.  The intermediate polymers are prepared by reacting mixed ethylene oxide and propylene oxide with the substance containing reactive hydrogen (preferably ethylene or propylene glycol) at elevated temperature and pressure in presence of an acidic or basic catalyst, e.g. sodium alkoxide or hydroxide or a quaternary ammonium base.  The final condensation with ethylene oxide alone is similarly performed.  Preparation of a compound is described, starting with propylene glycol, adding chains containing propylene oxide and ethylene oxide randomly distributed to produce a polymer with a molecular weight of 1675, and reacting this with further ethylene oxide.  This polymer and others similarly constituted had carbon soil removal values as defined in the Specification between 106 and 283 per cent.  The products of the invention are useful inter alia as laundry detergents, dry cleaning solvents, de-greasing agents for wool and as plasticisers for synthetic resins.
Patent GB-416927-A (GB)
Title: Process of producing solidified mineral oil preparations
IPC: A61K47/44
Filed: 1933-03-15
Abstract: Mineral oils are solidified or gelatinized by such proportions of soap and natural or artificial beeswax or essential constituents - cerotic acid and/or alcohol - of such wax that the product contains 1--5 per cent of beeswax and 2--8 per cent of soap.  Alcohol or other solvent may be mixed with the soap, and paraffin, ceresine, or other wax with the beeswax.  To the products may be added scents or cosmetic or therapeutic substances, e.g. formaldehyde, paraformaldehyde, oil of eucalyptus, lemon, rosemary, thyme, mirbane, or camomile.  The jelly-like products may be rendered pulverulent by adding magnesium carbonate, talcum, or other suitable solid or solids. The products may be used as lubricants or cosmetics, for treating chilblains, for surgical treatment, for destroying lice, mosquitos, &c., and for promoting the growth of hair.  In an example, 1000 gm. of petroleum or a fraction of brown-coal tar and a mixture of 30 gm. of medicated soap with 50 gm. of methylated spirit are stirred or sprayed into 50 gm. of melted beeswax at 30 DEG C.ALSO:Mineral oils are solidified or gelatinized by such proportions of soap and natural or artificial beeswax or essential constituents-cerotic acid and/or alcohol-of such wax that the product contains 1-5 per cent of beeswax and 2-8 per cent of soap.  Alcohol or other solvent may be mixed with the soap, and paraffin, ceresine, or other wax with the beeswax.  To the products may be added scents or cosmetic or therapeutic substances, e.g. formaldehyde, paraformaldehyde, oil of eucalyptus, lemon, rosemary, thyme, mirbane, camomile, or two or more.  The jelly-like products may be rendered pulverulent by adding magnesium carbonate, talcum, or other suitable solid or solids.  The products may be used as lubricants or cosmetics, for treating chilblains, for surgical treatment, for destroying lice, mosquitos, and other insects and parasites, and for promoting the growth of hair.  In an example, 1000 gm. of petroleum or a fraction of brown-coal tar and a mixture of 30 gm. of medicated soap with 50 gm. of methylated spirit are stirred or sprayed into 50 gm. of melted beeswax at 30 DEG  C.
Patent GB-683266-A (GB)
Title: Improvements in or relating to continuous change-speed gears
IPC: F16H15/46
Filed: 1951-04-05
Abstract: 683,266. Variable-speed friction gear. DALL 'OLIO, V. April 5, 1951 [Aug. 1, 1950], No. 7906/51. Class 80 (ii). A continuously-variable friction gear comprises two opposite driving discs 11, 12 engaged alternatively by a series of driven rollers 17 rotatably mounted on an output shaft 19 and interconnected by gearing. The velocity ratio of the gearing between adjacent rollers is equal to the ratio of the minimum to the maximum velocity of the disc and roller. Two electric motors 1, 2 which drive the discs 11, 12 are mounted on a cylindrical housing 5 rotatable about a shaft 8 under the action of springs 13, 14 to equalize the pressure between the friction elements. End plates 6, 7 of the housing 5 support rotatably the output shaft 19 and a countershaft 22 carrying toothed gears 20, 21 which engage respectively gears 18 rigid with one roller 17 and gears 23 which drive, through a one-way clutch, an adjacent roller 17. The one-way clutches prevent the end rollers from attaining high speeds when the velocity ratio of the gear has a low value. A final reduction gear 24, 25 is provided between the end roller 17 and the shaft 19. The friction-roller-countershaft assembly is moved axially of the shaft 19 by means of a handle 30 and screw 31 to traverse the rollers 17 across the discs 11, 12, one roller moving out of engagement as the other moves in. An indicator, Fig. 3 (not shown), is provided to give warning when two rollers contact the discs simultaneously.
Patent GB-820949-A (GB)
Title: Adjustable pressure regulating valve
IPC: B05B1/30
Filed: 1956-03-14
Abstract: 820,949. Valves. SEIFFERLE, O. March 14, 1956 [March 24, 1955], No. 7985/56. Class 135. A pressure regulator comprises a body 10 having an inlet passage 25, a regulating chamber 44 and an outlet passage 43. A butterfly valve 26 is positioned in the inlet passage 25 and is pivotally supported between its ends and has one of its arms 38 extending into the regulating chamber. The regulating chamber 44 carries a cylinder 45, extending laterally of the inlet passage which houses a piston 46 responsive to pressure in the chamber. The piston has an extending stem 48 with an intermediate guide portion 50 containing an annular groove 52 in its periphery. The annular groove engages with the end 68 of the butterfly valve 26 so that movement of the piston to the right tends to close the valve. The piston is urged in a valve-closing direction by a spring 58 housed in a cup member 62, which may be rotated to adjust the spring loading on the piston.
Patent GB-728827-A (GB)
Title: Improvements in or relating to coal cutting machines
IPC: E21C25/26
Filed: 1952-03-28
Abstract: 728,827. Mineral-mining machines. HOY & CO., Ltd., A., and PROCTOR, S. E. March 30, 1953 [March 28, 1952], No. 8035/52. Class 68(1).  In a mineral-mining machine of the type described in Specification 707,100, the section 17 of a jib 18 is connected to a hanger bracket 12 by a pivot 19 so that when a bolt 22 is released, it can be rotated about the pivot by mechanical means until the sections 17, 18a of the jib lie in a single plane. The mechanical means may be either a hydraulic motor 25, 26 or a worm and worm sector. Specification 682,603 also is referred to.
Patent GB-540916-A (GB)
Title: Improvements in or relating to doors
IPC: E06B3/48
Filed: 1940-05-04
Abstract: 540,916. Door-operating appliances. KING, Ltd., G. W., and KING, D. M. May 4, 1940, No 8038. [Class 65 (i)] [Also in Group X] A sliding and folding door comprises leaves 11 inter-connected by vertical hinges, the leaf at each extremity being hingedly connected at 11a to a rigid supporting member or mullion 12 mounted on wheels 13 running in a track 14, each mullion being of such a width (longitudinally of the door) as to maintain its vertical position. and to constrain the hinged leaves against tilting in the longitudinal direction of the door. In the opened position, at the right of Fig. 1, the mullions cover, to some extent, the folded leaves. The upper end of each mullion is fitted with one or more rollers 15 running in a guide channel 16, and guide rollers 42 may be provided at the top of each leaf which, at the bottom end, has a roller 20 carried in a pivotally mounted bracket and running on a track 19, the roller mounting being preferably of the kind described in Specification 532,347. Each supporting wheel 13 is driven by a reversible electric motor 25 through suitable gearing, a squared end 41 of a shaft 31 being adapted for the attachment of a handoperated crank.
Patent GB-1488972-A (GB)
Title: Filter for tobacco smoke
IPC: A24D3/04
Filed: 1975-02-26
Abstract: 1488972 Filter elements SVENSKA TOBAKS AB and F J BURRUS & CIE 26 Feb 1975 [13 March 1974] 8040/75 Headings A2C and A2M A filter for tobacco smoke is characterised by the smoke passing along a flow path in contact with one side of a membrane, the other side of the membrane being in direct contact with the atmosphere, the membrane being permeable to low molecular weight compounds in the gaseous phase of the smoke. Low molecular weight compounds are defined as hydrogen, CH 4 , HCN. C 2 H 2 , CO, CH 3 . CHO and CH 2 =CH. CHO and similar gaseous smoke constituents as opposed to tar, phenol, indolene &c. which are particulate smoke constituents. The membrane may consist of paper, polyethylene, polypropylene or silicone rubber. Fig 1 shows a filter end A with a downstream end portion F, an insert C. a filter element B attached to a smokable element E and a membrane D. Fig. 2 shows a transverse cross-section along the line 2-2 of Fig. 1. The filter may be an integral part of a cigarette or be transferable from one to another.
Patent GB-558139-A (GB)
Title: Improvements in control gear for electric trucks, vehicles and cranes
IPC: B66C13/54
Filed: 1942-06-12
Abstract: 558,139. Controllers. RANSOMES, SIMS & JEFFERIES, Ltd., RANSOME, D. P., and CLARK, A. H. June 12, 1942, No. 8044. [Class 38 (iii)] Reversing controller 3 is rotated either side of a dead-centre position by depression of a handle or pedal 1, connected thereto by a link 6 and crank 8. Direction of movement of the controller 3 is determined by a slotted setting arm 10 embracing the crank 8 and adapted to move the crank to either side of its dead-centre position. The arm 10 is oscillated by a handle 16 that has to be pulled out to release a bolt in its mid-position. A mechanical brake can be applied when the controller is "off."
Patent GB-181137-A (GB)
Title: Improvements in and relating to clutches for conveying rotary motion
IPC: F16D43/18
Filed: 1921-03-15
Abstract: 181,137. Buckley, C. A. M. March 15, 1921. Clutches, friction. -In centrifugallyoperated expanding band clutches for driving dynamos &c. at constant speed, bands X, X' are operated by togglelinks W, W<1> actuated by levers R, R<1> turning on pivots U, U<1> on a plate H secured to the driven shaft F. Springs S, S<1> attached to the lever ends effect engagement of the bands X, X<1> with a flange A<1> on the driving- pulley, and weight Q, Q<1> connected by links P, P<1> to a plate L adjustably secured to the plate II cause slip at excessive speed. A cover encloses the working parts.
Patent GB-1177253-A (GB)
Title: Improvements in or relating to a Method for Assembling Universal Joints
IPC: F16D3/41
Filed: 1967-02-21
Abstract: 1,177,253. Universal joints. NADELLA S.A., and A. PITNER. 21 Feb., 1967 [23 Feb., 1966], No. 8154/67. Heading F2U. In a Hooke's type universal joint correct alignment of a spider member 7 and a shaft (2), Fig. 2 (not shown), is obtained during assembly by engaging two opposed journals 17 of the spider with sealing rings 18 in bores 6 in a yokel on the shaft, and positioning the axis Z, Z<SP>1</SP> of the other two journals 12 in a plane including the longitudinal axis X, X<SP>1</SP> of the shaft by means of a member 8 comprising a support (11), Fig. 6 (not shown), which receives the shaft (2), a plate (13) fast with the support and carrying U- or V-shaped elements 9 engaging the journals 12, and a movable U- or V-shaped clamp jaw (14) also engaging journals 12. Needle cups 20 are then placed on the journals 17, whilst maintaining the above alignment, sliding the sealing rings 18 along the journals to abut shoulders 21. To provide zero, or a slightly negative clearance between the end faces 15, 16 of the journals and the corresponding cups, the arms la, 1b are separated by arms 19 and then released, e.g. by a device as shown in Figs. 11 and 12 of Specification 1,079,602. Retaining elements of the cups are then placed in position. The device 8 is then disengaged and the second yoke is similarly mounted. The method of assembly is particularly applicable to universal joints between a shaft supported in bearings defining its axis of rotation and another shaft supported at one end by the. universal joint and at the other end by a second universal joint. The elements 9 and (14) may be movable about axis X, X<SP>4</SP> to obviate the necessity of a close tolerance in the perpendicularity between axis Y, Y<SP>1</SP> and Z, Z<SP>1</SP> for machining the crossmember.
Patent GB-744316-A (GB)
Title: A machine for forming grooves in oscillatory metal dies
Inventor: GROVE PETER
IPC: B24B19/02
Filed: 1953-03-25
Abstract: 744,316. Lathes for turning grooves in Pilger rolls; copy-turning. T.I. (GROUP SERVICES), Ltd. March 17, 1954 [March 25, 1953], No. 8200/53. Class 83 (3).[Also in Group XXIII] A machine for turning or grinding grooves simultaneously in the peripheries of a pair of Pilger rolls comprises a horizontal rotary table to carry the rolls, mechanism deriving its motion from the table for imparting simultaneous angular motion to the rolls, a horizontallymovable saddle to carry a vertically-arranged tool, a slidable cam corresponding to the configuration of the grooves to be formed in the rolls, fluid-operated means to act on the saddle for pressing a part associated therewith into contact with the cam, and means for simultaneously rotating the table and sliding the cam, the latter means comprising a driving-shaft receiving rotary motion from an electric motor or other source, rack-and-pinion mechanism associated with the cam-gearing through which the rack-and-pinion mechanism is'operable by the driving shaft, and gearing through which the table is rotatable by the driving shaft. The closed frame b of the machine has a lower part a supporting a rotary work-table d driven through gearing from an electric motor and a brake l. A cross-beam 8 is adjustable vertically on guideways of the side frame-members by a further electric motor 49 driving a pair of screws 43. The beam 8 carries a laterally-movable slide 9 maintained against a cam plate 21 by a fluid-pressure piston-and-cylinder 25. The slide 9 carries a stationary vertically-arranged toolbar with a tool in its end, or a grinding wheel with an independent speed-adjustable belt drive 14, 16. The work-table d, Fig. 3, carries a platform k having a pair of upwardly-extending parallel walls m which support a pair of workholders o located between the walls and mounted in bearings n horizontally adjustable by screwed rods r. The work-holders are rotated slowly during the cutting of the grooves by wormgearing v, w driven from the centre shaft 7, Fig. 1, of the table d through clutch y. The cam 21 is moved upwardly to vary the depth of groove cut by rack-and-pinion gearing 27, 28, driven from a vertical splined shaft 36 which is in turn driven through change gearing 39 from the table driving-gearing and shaft 40.
Patent GB-876947-A (GB)
Title: Photographic shutter
IPC: G03B17/42
Filed: 1960-03-08
Abstract: 876,947. Photographic shutters. AGFA A. G., March 8, 1960 [March 10, 1959], No. 8207/60. Class 98(1) A pivoted blade photographic shutter has a main spring and a shutter operating spring of relative strengths so that the shutter operating spring can derive a plurality of setting movements from a single tensioning of the main spring, and a fully rotary shutter master member operated by the shutter operating spring and means for allowing individual settings and releases of said shutter operating spring. In the shutter of Fig. 1 the blades (not shown) are pivoted on a blade ring 3 which is controlled via a link 10 by a master member 5 which is mounted on the same shaft 8 as a spring housing 6, the teeth 27 of which engage teeth 28 on a second spring housing 29 the spring of which is tensioned in any well-known way. The master member has a cam 16 and the spring housing a cam 22. A two arm lever 18 has lugs 17, 21, 35, 36 which in certain positions engage cams 16, 22 and a lug 37 on a release arm 38 which is pivoted at 39. Normally the parts are in the position shown, with both springs tensioned. To release the shutter, an arm 38 is moved until it abuts a stop 45 and lug 37 releases lug 35 and hence lever 18, which is driven clockwise by cam 22 until an edge 24 on the spring housing 6 engages tooth 26 of the lever. However, the clockwise rotation of lever 18 has resulted in a hook 21 thereon freeing an edge 20 of the master member 5 which is then free to open and close the shutter under a driving force from the spring in housing 6 which engages the member 5. The member 5 is stopped when cam 16 meets lug 17 and forces lever 18 anticlockwise so that hook 21 thereof enters a cutaway area 19 of member 5 and lug 36 of lever 18 engages lug 37 of the release lever. When lever 38 is released it is returned by spring 40 to the position shown, thereby releasing the latching of 18 by means of lug 37 and disengaging cam 16 and lug 17, to allow member 5 to rotate a little further until edge 20 engages hook 21 and tooth 26 disengages edge 24 of the spring housing. This housing then does an almost complete anticlockwise rotation to tension its spring again and, by means of cam 22, to rotate lever 18 until by engagement of lug 35 with lug 53 the housing 6 is latched. For bulb exposures a lever is arranged to arrest the master member in the open position, with the spring housing 6 latched by tooth 26 of lever 18. When the lever 38 is released, the arresting lever unlatches member 5 and the other parts move as described above. For series exposure a lever 48 is pivoted into a position in which a part 50 of it will arrest lever 38 in a position in which it cannot be engaged by lever 18 and can, therefore, no longer prevent continuous movement of member 5 and the spring housing. In another embodiment the main spring is fixed to a film perforation roller and is connected through gearing to the spring housing 6 so that when the shutter spring is tensioned the film is moved on.
Patent GB-107047-A (GB)
Title: Improvements in or relating to Elastic Fluid Operated Ejectors.
Inventor: SCANES ARTHUR EDWIN LEIGH
IPC: F04F5/46
Filed: 1916-06-10
Abstract: 107,047. Scanes, A. E. L. June 10, 1916. Aspirating apparatus, ejector; starting, automatic.-Relates more especially to steam ejectors for exhausting air and non-condensable vapours from a steam condenser. In such apparatus, if required to produce a high degree of vacuum, the proportions of the parts are such that, on starting, pressure falls in the expansion nozzle below that in the body of the ejector, with consequent loss by shock and eddies resulting in delayed starting. To remedy this, the expansion of the inducing-fluid is reduced below normal until pressures corresponding to the usual compression ratio have been established, by means of the admission of additional elastic fluid, at intermediate points upon the expansion nozzle, at a pressure greater than that to which the inducing-fluid normally expands at such points. According to one arrangement, steam or other inducing-fluid entering by a pipe 6, Fig. 1, passes through a divided expansion nozzle 5<a>, 5<b>, before entering the suction chamber 1, mixing-cone 2, and diffuser 3, steam being drawn, from a point 10 of the mixing-cone having the desired pressure, through a pipe 8 and chamber 7 to the gap in the expansion nozzle so long as the pressure at the point 10 remains above that produced by expansion in the first part of the expansion nozzle, which thus acts at starting as a small ejector. If the pressure at the selected point 10 be normally slightly higher than this, regulation by a throttle valve 9 becomes possible. Ejectors having several expansion nozzles in parallel may be provided with a common chamber 7 connected with the mixing-cone; the expansion nozzles, also, may in either case be divided into more than two parts, each division having its closed chamber and connexion with the mixing- cone. In other arrangements, the connexion may be made to other sources of fluid-pressure, e.g. the atmosphere. Fig. 4 shows such a modification, wherein air entering at a port 11 is regulated by an automatic throttling valve 12 positioned by means of a differential-pressure diaphragm 13 and spring 16 according to the difference between atmospheric pressure and that existing at the selected point 10 in the mixing-cone.